There are 581 mouldy Brita filters stinking up Beth Terry’s dining room, and she couldn’t be more pleased.

The 43-year-old accountant will eventually deliver all of these back to Brita, the water-purification company, to be properly recycled — something that’s only possible thanks to a campaign she spearheaded called Take Back the Filter. It took a lot of back-and-forth letter writing and phone calling, numerous posts on her blog, Fake Plastic Fish, and over 16,000 petition signatures, but on Nov. 18, Terry finally succeeded.

In a press release, the company explained that as of January, consumers across North America would be able to recycle their old filters by dropping them off at participating Whole Foods locations, where they’ll be included along with yogourt lids and other No. 5 polypropylene plastics in the Preserve “Gimme 5” program (those who aren’t near a Whole Foods can mail them directly to Preseve; see recycline.com/gimme5).

Eventually, the filters will be turned into new plastic products, from toothbrushes and drinking cups to cutting boards and other types of kitchenware.

It’s a significant move on behalf of Brita — which is owned by Clorox — because they had recently spearheaded their own enviro-campaign called FilterForGood, using television ads and a website to inform the public about the amount of waste generated by plastic water bottles, and how using something like a Brita filter can produce clean-tasting water without the need for petroleum. It was somewhat hypocritical, however, considering the Brita filters themselves are made of plastic and must be replaced every few months; as well, the only place to recycle them up until now was in Europe.

When Terry — who lives in Oakland, Calif., and keeps track of all the plastic she purchases and discards as part of her green blog — realized she couldn’t recycle her filter, she decided to email Brita and ask why. In return, she got a standard form letter explaining there was a lack of recycling infrastructure available in the U.S.

“I sent another email after that,” says Terry, “asking why Brita was able to build its own facility in Europe but not here, and then I didn’t really get anything from them, so I just kind of blogged about it and ranted, then eventually let it go.”

Some time later, however, when she was checking her Google analytics to see what search terms had directed people to her site, Terry noticed the words “Brita” and “recycling” came up a lot. This prompted her to ask around and see if there was interest in starting a campaign, and so began the process of letters, petitions, websites and meetings with various environmental organizations.

And how, exactly, did she end up with 581 used Brita filters in her dining room?

“We were inspired by a bunch of guys who were collecting those promotional AOL CDs you get in the mail,” says Terry. “Their aim was to return a million of them back to the company. We liked the idea of that and decided to try for 1,000 Brita filters, so I set up a P.O. box and everything. But I still had to store them somewhere, and somehow they just ended up under my dining room table. It smells pretty bad.”

The reason for the foul odour, she explains, has to do with moisture.

“Some of them were all right, but others were soaking wet and full of water, and that was the worst because the Ziploc bags holding them would collect all this mould and bacteria. You’ll notice the Brita press release says they’re collecting dry filters.”

In the end, she received filters from all over the place; in fact, after California, Ontario had one of the highest mail-in rates. While Terry never reached the 1,000 mark, this is probably a good thing. It not only demonstrates the efficacy of her campaign, it means her dining room will probably smell a lot better come January.

What’s most impressive about the Take Back the Filter campaign, though, is that it began with a single, frustrated woman not knowing how to get rid of her water filter and ended with massive structural change at a multinational corporation in just months.

One might guess Terry herself is astounded by such a feat, but she downplays it.

“When I received the call from Brita saying they were going to make an announcement and basically go ahead with [the recycling plan], it wasn’t as big of a rush as it maybe should have been,” she says. “Brita is obviously a huge company, but Clorox was already taking steps toward improving its environmental image, like with its Greenworks line of natural cleaning products, which were developed with the Sierra Club. So we weren’t really pushing a huge boulder. It was moving slowly to begin with — we just got behind it and helped to push it faster, and in a slightly different direction.”

Terry — who now chooses to drink plain tap water without any filtration mechanism — believes that what ultimately convinced Brita to make such a significant change probably had more to do with keeping customers happy than saving the environment.

“I think they just needed to know that people really wanted it,” she says.